• Publications
  • Influence
Nonlinear self-excited oscillations of a ducted flame
  • A. Dowling
  • Physics, Engineering
    Journal of Fluid Mechanics
  • 10 September 1997
Self-excited oscillations of a confined flame, burning in the wake of a bluff-body flame-holder, are considered. These oscillations occur due to interaction between unsteady combustion and acoustic
Acoustic Analysis of Gas Turbine Combustors
Combustion instability has become a major issue for gas turbine manufacturers. Stricter emission regulations, particularly on nitrogen oxides, have led to the development of new combustion methods,
Thermoacoustic oscillations occur in a wide variety of practical applications in which heat is supplied to an acoustic resonator. A simple geometry is investigated systematically to determine the
A kinematic model of a ducted flame
  • A. Dowling
  • Engineering, Physics
    Journal of Fluid Mechanics
  • 10 September 1999
A premixed ducted flame, burning in the wake of a bluff-body flame-holder, is considered. For such a flame, interaction between acoustic waves and unsteady combustion can lead to self-excited
The absorption of sound by perforated linings
The efficiency of a perforated screen as a sound absorber can be greatly increased when a rigid surface is placed behind the screen, essentially because the sound can then interact many times with
▪ Abstract Early work and recent advances in feedback control of combustion oscillations are described. The physics of combustion oscillations, most commonly caused by a coupling between acoustic
The absorption of axial acoustic waves by a perforated liner with bias flow
The effectiveness of a cylindrical perforated liner with mean bias flow in its absorption of planar acoustic waves in a duct is investigated. The liner converts acoustic energy into flow energy
Modern Methods in Analytical Acoustics: Lecture Notes
I. The Classical Techniques of Wave Analysis.- 1 Complex Variable Theory.- 2 Generalized Functions.- 3 Fourier Transforms, Random Processes, Digital Sampling and Wavelets.- 4 Asymptotic Evaluation of